Improvement in water-elevators



edge.

PATENT OFFICE.

SAMUEL M. WASHBURN, OF POUGHKEEPSIE, NEW YORK. l

IM PRovEM ENTl IN wATER-ELEvA-roas.

Specification forming partof Letters Patent No. 35,405, dated May 27, 1862.

To all whom t may concern..-

Be it known that I, SAMUEL M. WAsHBUEN, of Poughkeepsie, of the county of Dutchess, in the State of New-` York, have invented a new and useful Improvement in Water-Elevators for Hoisting and Letting Down Buckets in Wells; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and letters of reference marked thereon.

In Figure l, A, the shaft, placed horizonzontally, passes centrally through the crank socket C, ratchet-wheel b and K, brake-Wheel D, drum B, and brake-wheeLF, and rests in the boxes or bearings G G. B, the drum, revolves around the shaft A and unwinds the chain I. C is the crank-wheel, with two bevelnotches cut opposite each other in the inner VD is the brake-wheel, with two arms or shafts placed in grooves in shaft A, under ratchet-wheel band K, with the ends extending to the 'bevel-notches of crank-socket C. F, the brake-Wheel, is fastened to shaft A by screw N. G G are boxes or bearings of shaft A and ratchet-wheel band K. M is the disk or washer fastened to the end of shaft A, covering the outer end of crank-socket C. L is the pawl, fastened to G and resting on ratchetwheel K` Fig. 2 shows the elevator with drum B not held by brake-wheels D andF. I is the-cor or chain with bucket attached.

Fig. 3 shows the brake-wheel with shafts o1 arms.

Fig. 4 shows the end of "ratchet-wheel band and shaft cut off to show the grooves H H.

Operation: Turn the crank-socket C to the right, which Wedges the bevel-notches against the bevel ends of the arms of brake-Wheel D and moves brake-wheel D longitudinally on the shaftA until it presses against the end of drum B, carrying it against the brake-Wheel F; thus pressed and firmly held by the brakes D and F the drum is carried around with the shaft A and Windsup the chain I. To unwind the chain, reverse the motion or turn cranksocket (l to the left while the pawl falls intothe notches of the ratchet-wheel K, preventing shaft A from revolving. The bevels in cranksocket C are thereby removed from the bevel ends of the arms of brake-wheel D and loosen drum B sufficient to revolve on shaft A, thus SAMUEL M. WASHBRN.

Witnesses: A

JOHN ALEERTsoN, J. G. P. HOLDEN. 

